| Player data |
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 | SNo | 5 | FIDE | 1997 | Local | 2100 |
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| Name | Kotarski, Bartosz | Fed | POL | R.ChessArbiter | 1909 |
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| Club | UKS Kopernik Olsztyn | Title | I++ | Local ID | PL-23459 |
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| Code | 1159267 | Sex | M | Birthday | 1999 |
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| Number of rated opponents: | 5 | Score vs. rated opponents: | 4.0 |
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| Average rating: | 1800 | Rating Change: | 0.40 |
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